Short answer: the Audio First Fidelia. It ranks #1 of 179 bookshelf speakers by sound quality (rated 4.8/5); the Polk T15 ranks #164 (rated 1.9/5).
What the Polk T15 does well: A very affordable bookshelf speaker for near-field desktop use. Watch for: Spinorama analysis shows a deep on-axis dip from 3 to 6kHz in the upper mids and lower treble, likely from tweeter-woofer phase cancellation directly on-axis.
The Audio First Fidelia is the more accurate, deeper-bass choice. An excellent medium bookshelf speaker, a compact kit with remarkably accurate sound and good bass for its size at a great value. Its measured preference score, a predictor of how neutral it sounds, is 6.45 against 0.34 for the Polk T15. Its bass reaches about 53Hz before falling 3dB, against 88.6Hz for the Polk T15. The tradeoff: Kit assembly required; lower sensitivity (~83-85 dB vs. typical 85 dB average) demands adequate amplifier power.
Buy the Audio First Fidelia. It is rated higher for sound quality than the Polk T15.
Looking for alternatives? See the complete Passive Home rankings.
A very affordable bookshelf speaker for near-field desktop use.
An excellent medium bookshelf speaker, a compact kit with remarkably accurate sound and good bass for its size at a great value.
Prices on this page were last checked October 31, 2026 at 7:11 PM UTC. Product prices and availability are accurate as of that date/time and are subject to change; the price and availability shown on Amazon at the time of purchase will apply to the purchase of this product.
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Specifications Side By Side
| Polk T15 | Audio First Fidelia | |
|---|---|---|
| Price | $149.00 per pair | £950 per pair for the flatpack kit (assembly required) |
| Ranked | #164 of 179 in Medium Size Bookshelf Speakers | #1 of 179 in Medium Size Bookshelf Speakers |
| Drivers | 0.75” tweeter, 5.25” woofer | 5” ceramic-aluminum cone woofer, 1” ceramic-aluminum tweeter |
| Dimensions | 10.63H x 6.5W x 7.25D in | 11.8”H x 7.1”W x 11.7”D (300 x 180 x 297.6 mm) |
| Weight | 8.2 lbs (3.74 kg) each | 15 lbs (6.8 kg) each |
| Frequency Response | 60Hz - 24kHz (Manufacturer specified) | - |
| Bass Extension (-3dB) | 88.6Hz (measured, Audio Science Review) | 53Hz (measured, Erin’s Audio Corner) |
| Bass Extension (-10dB) | 58.1Hz (measured, Audio Science Review) | 38Hz (measured, Erin’s Audio Corner) |
| Impedance | 8 ohms nominal | 4 ohms |
| Spinorama Preference Score | 0.34 | 6.45 |
| Spinorama Preference Score with Perfect Sub | 3.39 | 8.46 |
| Sensitivity | 89dB (manufacturer specified, 1W/1m); 88.98dB measured, spinorama.org | 84dB |
| DIY Kit | No | Yes |
| Crossover Frequency | - | 1560Hz |
| Woofer Cabinet | - | ported, rear |
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